Keyword Analysis & Research: why does a balloon expand when heated

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
why does a balloon expand when heated	1.05	0.2	5387	43	37
why	0.69	0.4	2666	27	3
does	1.05	0.9	8787	31	4
a	0.32	0.6	4615	58	1
balloon	0.94	0.6	4226	62	7
expand	0.5	0.3	2935	29	6
when	0.93	0.6	310	60	4
heated	0.19	0.6	153	12	6

Keyword	CPC	PCC	Volume	Score
why does a balloon expand when heated	0.89	0.4	7344	11